How to Find the Right Air-Conditioner Size to Save Money

Buying the best-quality and upgraded air-conditioner for your home can be one of your best investments. It will provide you and your family comfort during the hot seasons and uncomfortable temperatures. However, one of the common mistakes homeowners make is not considering the size of their air-conditioning unit. 

When you install the wrong AC size, it may give you unnecessary high energy bills and make your house feel clammy. For example, when you buy an AC unit that is too small for your home, it may have to work twice as hard to provide cold temperatures. This can break your unit and increase your energy bills and home expenses.

Having an air-conditioner in the right size installed in your homes will provide you a more relaxed space and can help eliminate humidity. Aside from that, it can also save you some money. In this article, we’ll be discussing the latter: how to choose the right air-conditioning to help you save money. 

You have to do the math

One of the most crucial steps you have to do before buying an air-conditioner is calculating how much space your unit will work on. For straightforward rooms, all you’ll need to do is measure the area by multiplying the length by its width. However, if you have an odd-shaped place, you’ll need to do some geometry. Once you have the right measurements, you’ll want to multiply it by 25 British Thermal Units or BTUs to know the measurements of your air-conditioner’s cooling capacity.

When you have a rough estimate of how much cooling your space may need, it will be easier for you to find the right AC unit for your area. Choosing the right air-conditioning size can reduce the need for repairs and replacements, ultimately saving you lots of money.

Consider other factors other than space

Getting a rough estimate of your space is only one part of the puzzle. To get the right type and size of the AC unit, you’ll have to consider other factors that can affect the size of the air-conditioning unit you’ll need for your space:

  • When your room is shaded, you may want to consider buying a unit that has 10% less BTU capacity from your computation. However, if your room gets more sun, you may want to add 10% in the BTU.
  • If more than two people occupy the room, you should consider getting a unit with an additional 600 BTU to provide more comfort. 
  • If you’re looking for an AC unit for your kitchen, keep in mind that this room will be producing a lot of heat. It’s best to add at least 4,000 BTU when looking for an air-conditioning unit. 

Considering these factors will help you choose the right air-conditioning unit, which could benefit your space immensely. When you choose the wrong one, your unit’s wear and tear may quicken, and you’ll have to get repairs often, forcing you to shell out more money than needed. 

Work with the right HVAC team

Consulting and asking for assistance from Legacy Heating & Cooling can help you with your air-conditioning improvements and installations. Our professionals can help provide the necessary information you need to help you choose the right air-conditioning unit for your space. Besides that, you’ll have guaranteed regular maintenance from their team.

Working with an HVAC team can help reduce unnecessary electric bill spikes, and they can also help choose the right HVAC systems for your home. 


You need to make sure that your home’s HVAC system is ready for all the seasons that your home will experience throughout the year. Choosing the proper air-conditioner size is beneficial not only for your comfort, but also for saving money all summer long. Make sure that you’re working with a reliable HVAC installer to help you with maintenance and repairs. This way, you won’t have to worry about sweating and feeling uncomfortable when hotter days arrive. 

Are you looking for air conditioning units in Edmonton, Sherwood Park, Sherwood Park, Spruce Grove or other nearby communities? Legacy Heating is a premier company that specializes in HVAC systems for residential properties. We provide high-quality HVAC system installation, maintenance, repair, plumbing, filtration, and construction. Get a free quote from us today!

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